/Engine/Source/Runtime/Engine/Classes/Components/SkeletalMeshComponent.h
Runs through all nodes, attempting to find linked instance by name/tag, then sets the class of each node if the tag matches
void LinkAnimGraphByTag ( [FName](API\Runtime\Core\UObject\FName) InTag, [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UAnimInstance](API\Runtime\Engine\Animation\UAnimInstance) > InClass )